Sound familiar?
What people are putting up with today
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A typical small duplex nets a profit margin of under 10% — thin enough that a cost blowout, low valuation, delay or soft market can wipe it out entirely.
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It's easy to anchor on the cheapest builder quote you can find rather than the real cost, and only find out the gap once you're committed.
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Construction costs rose 5.9% in the year to June 2026, the fastest pace since 2023 — so a feasibility spreadsheet built on last year's numbers is already out of date.
How Feasnap works
Feasnap is a guided feasibility check built specifically for 1-4 unit duplex and townhouse sites. Enter the site, land price and unit count, and it runs the full residual-land-value calculation against current regional construction costs and council contribution rates — flagging a thin margin, a low contingency or a stale comparable before you spend on plans, instead of leaving you to catch it yourself in a spreadsheet.
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01
Enter the site address, land price, and the unit count you're considering — duplex, triplex, or up to four townhouses.
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02
Feasnap runs the residual-land-value calculation against current regional construction cost and council contribution benchmarks, and flags anything that looks thin — a sub-10% margin, a contingency under 10%, or a stale comparable sale.
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03
Download a report showing the numbers and the flags, so you go into a site — or a loan application — with the real picture, not a guess.
In their words
What people are saying
Real quotes from public reviews and forums, with names removed. None are about Feasnap — it isn't available yet.
They know it costs $1.5 million to build, but they think, if I go to enough builders I'll find someone who's really keen...and I'll get it for $1.35 million.
Founding access
Apply for founding access
Feasnap is opening to a small group of founding members first.
- Early access before public launch
- A locked-in founding price
- A direct say in what gets built
Privacy notice: we collect your email (and your answer above, if you give one) solely to contact you about founding access to Feasnap. We don't sell or share your information with third parties, and we won't use it for anything else. You can ask us to delete your details at any time by emailing [email protected].
For investors
Interested in backing Feasnap?
See the research behind it — the problem, market size, competition and plan — in a short investor deck.